JEE Main 2022 · 29 Jul · Shift 2 · Chemistry Q76

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ChemistrySingle correct+4 / -1Question 76 of 90

When enthanol is heated with conc. H $_2$ SO $_4$ , a gas is produced. The compound formed, when this gas is treated with cold dilute aqueous solution of Baeyer's reagent, is

formaldehyde

formic acid

glycol

ethanoic acid

Answer and worked solution

Official answer: C

Steps. Ethanol with hot conc. H₂SO₄ gives ethene; cold dilute alkaline KMnO₄ hydroxylates it to ethane-1,2-diol (glycol).

(C)

Topics:Alkenes Alcohols

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JEE Main 2022 · 29 Jul · Shift 2, Chemistry question 76